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1.05057

Potassium disulfite

for analysis EMSURE®

别名:

Potassium disulfite, Potassium metabisulfite, Potassium pyrosulfite

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关于此项目

经验公式（希尔记法）:
K2O5S2
化学文摘社编号:
16731-55-8
分子量:
222.32
UNSPSC Code:
12352302
EC Index Number:
240-795-3
NACRES:
NA.21
MDL number:
MFCD00167605
Assay:
≥96% (iodometric)
Grade:
reagent grade
Form:
solid
Solubility:
450 g/L
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Quality Level

300

grade

reagent grade

product line

EMSURE®

assay

≥96% (iodometric)

form

solid

potency

2300 mg/kg LD50, oral (Rat)

impurities

≤0.005% In water insoluble matter

pH

3.0-4.5 (20 °C, 50 g/L in H2O)

mp

150 °C (decomposition)

solubility

450 g/L

bulk density

1000‑1300 kg/m3

anion traces

chloride (Cl-): ≤0.005%

cation traces

As: ≤0.0001%, Cu: ≤0.001%, Fe: ≤0.0005%, Pb: ≤0.001%, Zn: ≤0.001%

storage temp.

2-30°C

SMILES string

[K+].[K+].[S](=O)(=O)([S](=O)[O-])[O-]

InChI

1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2

InChI key

RWPGFSMJFRPDDP-UHFFFAOYSA-L

Analysis Note

Assay (iodometric): ≥ 96 %
In water insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.005 %
As (Arsenic): ≤ 0.0001 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.0005 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.001 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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pictograms

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GHS05,GHS07

signalword

Danger

Hazard Classifications

Eye Dam. 1 - STOT SE 3

target_organs

Respiratory system

supp_hazards

EUH031

存储类别

13 - Non Combustible Solids

wgk

WGK 1

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全球贸易项目编号

货号GTIN
105057050004022536060095
105057250004022536060125
105057100004022536060101